KR960014933A - Magnetic particle detection magnetizer - Google Patents

Magnetic particle detection magnetizer Download PDF

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Publication number
KR960014933A
KR960014933A KR1019950034797A KR19950034797A KR960014933A KR 960014933 A KR960014933 A KR 960014933A KR 1019950034797 A KR1019950034797 A KR 1019950034797A KR 19950034797 A KR19950034797 A KR 19950034797A KR 960014933 A KR960014933 A KR 960014933A
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KR
South Korea
Prior art keywords
magnetic
magnetic flux
magnetic particle
magnetization means
flux direction
Prior art date
Application number
KR1019950034797A
Other languages
Korean (ko)
Inventor
미치오 누마구치
구니유키 아베
Original Assignee
구니유키 아베
시마바라 히로시
에이싱 가가쿠 가부시키가이샤
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 구니유키 아베, 시마바라 히로시, 에이싱 가가쿠 가부시키가이샤 filed Critical 구니유키 아베
Publication of KR960014933A publication Critical patent/KR960014933A/en

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/72—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
    • G01N27/82—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws
    • G01N27/83—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws by investigating stray magnetic fields
    • G01N27/84—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws by investigating stray magnetic fields by applying magnetic powder or magnetic ink

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)

Abstract

1. 청구범위에 기재된 발명이 속한 기술분야.1. The technical field to which the invention described in the claims belongs.

본 발명은 자분탐상자화장치에 관한 것이다.The present invention relates to a magnetic particle detector.

2. 발명의 해결하려하는 기술적 과제.2. The technical problem to be solved of the invention.

본 발명은 자분탐상자화장치에 관한 것이며 특히 유효자장범위내에서 모든 방향의 결합 및 모서리부의 검출과 소형화를 달성하려는 것이 본 발명이 해결하려는 기술적 과제이다.The present invention relates to a magnetic particle detection device, and in particular, the technical problem to be solved by the present invention is to achieve the detection and miniaturization of the coupling and the corner portion of all directions within the effective magnetic field range.

3. 발명이 해결방법의 요지.3. The subject of the solution of the invention.

제1도에서는 본 발명의 2극형자분탐상자화장치가 나타나있으며 제1도에서는 H형상 규소강판의 박판(1)을 중첩시킨 후 이 세로방향으로 제1의 자속방향을 가지는 자화수단으로 있는 코일(3)을 감고 이어서 박판(1)의 가로방향으로 제2의 자속방향을 가지는 자화수단으로 있는 코일(2)를 감아서 2극형자분탐상자화장치를 제작한다.FIG. 1 shows a bipolar magnetic particle detector according to the present invention. In FIG. 1, a thin plate 1 of an H-shaped silicon steel sheet is superimposed, and the coil is provided as a magnetizing means having a first magnetic flux direction in this longitudinal direction. 3) and then the coil 2 serving as a magnetization means having a second magnetic flux direction in the transverse direction of the thin plate 1 is wound to produce a dipole type magnetic particle detector.

2극형자분탐상자화장치의 유효자장범위는 자극의 폭이 30㎜, 길이가 30㎜의 자극(1a)와 (1b)사이의 거리는 190㎜이고 자극의 폭방향으로 편측 100㎜이다.The effective magnetic field range of the bipolar magnetic particle detector was 30 mm in width of the magnetic pole and 30 mm in length, and the distance between the magnetic poles 1a and 1b was 190 mm and 100 mm in the width direction of the magnetic pole.

4. 발명의 중요한 용도.4. Important uses of the invention.

유효자장범위내에서 모든 방향의 결합 및 모서리부의 검출을 할 수가 있고 소형화가 가능하여 우수한 작업성을 가진다.All directions can be combined and edges can be detected within the effective magnetic field range.

Description

자분탐상 자화장치Magnetic particle detection magnetizer

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제1도는 본 발명의 2극형 자분탐상자화장치를 나타내는 간략사시도이다,1 is a simplified perspective view showing a bipolar magnetic particle detector according to the present invention.

제2도는 본 발명의 2극형 자분탐상자화장치의 자극배치를 나타내는 간략평변도이다,2 is a simplified plan view showing the magnetic pole arrangement of the bipolar magnetic particle detector according to the present invention.

제3도는 본 발명의 2극형 자분탐상자화장치를 사용해서 모퉁이 내부를 검사하는 것을 나타내는 간략평면도이다,3 is a simplified plan view showing the inspection of the inside of the corner using the bipolar magnetic particle detector according to the present invention.

제4도는 본 발명의 2극형자분탐상자화장치를 사용한 경우의 유효자장범위를 나타내는 간략평면도이다,4 is a simplified plan view showing the effective magnetic range in the case of using the bipolar magnetic particle detector according to the present invention.

제5도는 본 발명의 2극형자분탐상자화장치에 사용되는 배선도이다,5 is a wiring diagram used for the dipole magnetic particle detector according to the present invention.

제6도는 본 발명의 3극형자분탐상자화장치에 사용되는 자석의 간략사시도이다.6 is a simplified perspective view of a magnet used in the tripolar magnetic particle detector according to the present invention.

Claims (5)

피검사물의 근방에 직렬로 배치시킨 자극을 2개 이상 가지고 있고, 이를 자극에 의해 형성되는 복수의 자화수단으로 있으며, 이들 자화수단이 발생하는 각각의 자속방향이 서로 교차하고 있는 것을 특징으로 하는 자분탐상자화장치.Magnetic particles characterized by having two or more magnetic poles arranged in series in the vicinity of the test object, and having a plurality of magnetization means formed by the magnetic poles, and the magnetic flux directions generated by these magnetic means intersect each other. Tampering device. 제1항에 있어서, 복수의 자화수단이 제1의 자속방향을 가지는 자화수단과 제2의 자속방향을 가지는 자화수단이며 이들 자화수단의 자속방향이 직교하고 있는 것을 특징으로 하는 자분탐상자화장치.2. The magnetic particle detection apparatus according to claim 1, wherein the plurality of magnetization means are magnetization means having a first magnetic flux direction and magnetization means having a second magnetic flux direction, and the magnetic flux directions of these magnetization means are orthogonal to each other. 제1항에 있어서, 복수의 자화수단이 제1의 자속방향을 가지는 자화수단과 제2의 자속방향을 가지는 자화수단과 제3의 자속방향을 가지는 자화수단등으로 되어 있는 것을 특징으로 하는 자분탐상자화장치.2. The magnetic particle detection according to claim 1, wherein the plurality of magnetization means comprises magnetization means having a first magnetic flux direction, magnetization means having a second magnetic flux direction, magnetization means having a third magnetic flux direction, and the like. Magnetizer. 제1항에 있어서, 4개의 발을 가지는 빗형상의 자화부재로 되어 있고 제1부위와 제3부위에서 발생하는 제1의 자속방향을 가지는 자화수단과, 제2부위와 제4부위에서 발생하는 제2의 자속방향을 가지는 자화수단등으로 되어 있으며 이물 자화수단의 자속방향이 교차하고 있는 것을 특징으로 하는 자분탐상자화장치.2. The magnetizing means according to claim 1, wherein the magnetizing means has a comb-shaped magnetizing member having four feet, and has a first magnetic flux direction occurring at the first and third portions, and at the second and fourth portions. And a magnetization means having a second magnetic flux direction, and the magnetic flux direction of the foreign material magnetization means intersects. 제1향에 있어서, 자화수단을 구성하는 자화부재가 H형으로 있는 것을 특징으로 하는 자분탐상자화장치.The magnetic particle detection device according to claim 1, wherein the magnetization member constituting the magnetization means is H-shaped. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950034797A 1994-10-11 1995-10-11 Magnetic particle detection magnetizer KR960014933A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP6271684A JPH08110322A (en) 1994-10-11 1994-10-11 Magnetic powder flaw detection magnetizing apparatus
JP94-271684 1994-10-11

Publications (1)

Publication Number Publication Date
KR960014933A true KR960014933A (en) 1996-05-22

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Application Number Title Priority Date Filing Date
KR1019950034797A KR960014933A (en) 1994-10-11 1995-10-11 Magnetic particle detection magnetizer

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JP (1) JPH08110322A (en)
KR (1) KR960014933A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20170022049A (en) 2015-08-19 2017-03-02 강수동 Magnetic particle testing apparatus

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110568061A (en) * 2019-09-17 2019-12-13 常州捷锐试验检测有限公司 magnetic powder detection method for circumferential defects of inner wall of hole

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20170022049A (en) 2015-08-19 2017-03-02 강수동 Magnetic particle testing apparatus

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Publication number Publication date
JPH08110322A (en) 1996-04-30

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